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  3. Mercury Stable Isotope Assessment of Global Food Webs

Mercury Stable Isotope Assessment of Global Food Webs

Dates

Publication Date
Start Date
2017
End Date
2021

Citation

Janssen, S.E, and Lepak, R.F, 2023, Mercury Stable Isotope Assessment of Global Food Webs: U.S. Geological Survey data release, https://doi.org/10.5066/P9XEOF04.

Summary

This dataset describes mercury (Hg) stable isotope values in fish dorsal muscle from different freshwater environments across the globe. Fish were collected at numerous field sites in North America, South and Central America, Africa, and Asia from 2006-2020. Sub-samples were provided by cooperators to the U.S. Geological Survey Mercury Research Laboratory and the University of Wisconsin for mercury stable isotope analysis. Samples were analyzed for mercury stable isotopes from 2017-2021. These specimens represent multiple trophic levels and body sizes from different food webs and when adequate mass was available, multiple species from the same food web were examined. Cooperators include, but are not limited to: Anton de Kom University [...]

Contacts

Point of Contact :
Sarah E Janssen
Process Contact :
Sarah E Janssen
Originator :
Sarah E Janssen, Ryan F Lepak
Metadata Contact :
Sarah E Janssen
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Upper Midwest Water Science Center
USGS Mission Area :
Ecosystems

Attached Files

Click on title to download individual files attached to this item.

Mercury Stable Isotopes in Global Biota.xml
Original FGDC Metadata
View 		23.53 KB application/fgdc+xml
Table_1_Data_Dictionary_Global_Fish_Hg.csv 39.19 KB text/csv
Table_2_Site_Locations.csv 1.29 KB text/csv
Table_3_North_America_Freshwater_Biota.csv 7.34 KB text/csv
Table_4_South_and_Central_America_Freshwater_Biota.csv 10.95 KB text/csv
Table_5_Africa_Freshwater_Biota.csv 17.87 KB text/csv
Table_6_Asia_Freshwater_Biota.csv 9.43 KB text/csv

Purpose

This data was collected to assess mercury sources and delivery pathways to aquatic food webs. Emphasis was placed on tropical and sub-tropical food webs, which are understudied for mercury cycling.

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Communities

  • USGS Data Release Products
  • Upper Midwest Water Science Center

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9XEOF04

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